:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --elevated: #f9fafb;
    --hover: #f3f4f6;
    --border: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.16);
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-dark: #1e40af;
    --accent-light: rgba(37, 99, 235, 0.1);
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --info: #0284c7;
    --text: #111827;
    --text-2: #4b5563;
    --text-3: #6b7280;
    --text-4: #9ca3af;
    --radius: 12px;
    --radius-lg: 16px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text) !important;
}

p {
    color: var(--text-2);
}

a {
    text-decoration: none;
    color: inherit;
}

::selection {
    background: rgba(37, 99, 235, 0.2);
    color: var(--text);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
}

.form-label {
    color: var(--text-2) !important;
    font-size: 0.85rem;
    font-weight: 600;
}

.form-control,
.form-select {
    background: var(--surface) !important;
    border: 1px solid var(--border) !important;
    color: var(--text) !important;
    border-radius: 10px;
    padding: 0.65rem 0.9rem;
    font-size: 0.85rem;
    font-family: inherit;
    transition: all 0.2s var(--ease);
}

.form-control:hover,
.form-select:hover {
    border-color: var(--border-hover) !important;
}

.form-control:focus,
.form-select:focus {
    background: var(--surface) !important;
    border-color: var(--accent) !important;
    color: var(--text) !important;
    box-shadow: 0 0 0 3px var(--accent-light) !important;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-4) !important;
}

.form-select option {
    background: var(--surface);
    color: var(--text);
}

.modal-content {
    background: var(--surface) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-lg) !important;
    color: var(--text) !important;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--border) !important;
    padding: 1.25rem 1.5rem;
}

.modal-title {
    color: var(--text) !important;
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-title i {
    color: var(--accent);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border) !important;
    padding: 1rem 1.5rem;
}

.btn-close {
    opacity: 0.5;
}

.btn-close:hover {
    opacity: 0.8;
}

.modal-backdrop {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.alert {
    border-radius: 10px;
    font-size: 0.85rem;
}

.alert-success {
    background: rgba(5, 150, 105, 0.08) !important;
    border: 1px solid rgba(5, 150, 105, 0.25) !important;
    color: #065f46 !important;
}

.alert-success i {
    color: var(--success);
    margin-right: 6px;
}

.alert-info {
    background: rgba(2, 132, 199, 0.08) !important;
    border: 1px solid rgba(2, 132, 199, 0.25) !important;
    color: #075985 !important;
}

.alert-info i {
    color: var(--info);
    margin-right: 6px;
}

.breadcrumb {
    background: transparent !important;
    margin-bottom: 1.5rem;
    padding: 0;
    font-size: 0.85rem;
}

.breadcrumb-item a {
    color: var(--text-3);
    text-decoration: none;
    transition: color 0.2s var(--ease);
}

.breadcrumb-item a:hover {
    color: var(--accent);
}

.breadcrumb-item.active {
    color: var(--text-2) !important;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-4) !important;
}

.btn-primary,
.btn-secondary {
    font-family: inherit;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 10px;
    padding: 0.6rem 1.25rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s var(--ease);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-dark));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--elevated) !important;
    color: var(--text) !important;
    border: 1px solid var(--border) !important;
}

.btn-secondary:hover {
    background: var(--hover) !important;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.brand-icon i {
    font-size: 1.2rem;
    color: white;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--text);
}

.brand-tag {
    font-size: 0.65rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.navbar-search {
    flex: 1;
    max-width: 400px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--elevated);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.5rem 1rem;
    transition: all 0.2s var(--ease);
}

.navbar-search:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
    background: var(--surface);
}

.navbar-search i {
    color: var(--text-3);
    font-size: 0.85rem;
}

.navbar-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 0.85rem;
    font-family: inherit;
}

.navbar-search input::placeholder {
    color: var(--text-4);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-icon-btn {
    position: relative;
    width: 40px;
    height: 40px;
    background: var(--elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    cursor: pointer;
    transition: all 0.2s var(--ease);
}

.nav-icon-btn:hover {
    background: var(--hover);
    color: var(--text);
    border-color: var(--border-hover);
}

.notification-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--surface);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--warning), var(--danger));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.user-avatar i {
    font-size: 1rem;
    color: white;
}

.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: white !important;
    border: none;
    border-radius: 10px;
    padding: 0.6rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s var(--ease);
    white-space: nowrap;
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-dark));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-2);
    border: 1px solid var(--border-hover);
    border-radius: 10px;
    padding: 0.6rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s var(--ease);
}

.btn-ghost:hover {
    background: var(--elevated);
    color: var(--text);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    font-size: 1.5rem;
    color: var(--accent);
}

.logo h1 {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    margin: 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.category-bar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.category-list,
.category-scroll {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.category-list::-webkit-scrollbar,
.category-scroll::-webkit-scrollbar {
    display: none;
}

.category-item,
.cat-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0.45rem 1rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 999px;
    color: var(--text-2);
    font-size: 0.83rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.2s var(--ease);
}

.category-item:hover,
.cat-pill:hover {
    background: var(--elevated);
    color: var(--text);
}

.category-item.active,
.cat-pill.active {
    background: var(--accent-light);
    border-color: rgba(37, 99, 235, 0.25);
    color: var(--accent);
}

.category-item i,
.cat-pill i {
    font-size: 0.95rem;
}

.main-area,
.main-content {
    padding: 2rem 0 3rem;
    min-height: calc(100vh - 200px);
}

.content-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.content-title,
.section-title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
}

.content-title i,
.section-title i {
    color: var(--accent);
}

.content-count {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-3);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.3rem 0.85rem;
    border-radius: 999px;
}

.category-hero {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.category-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.category-hero-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.category-icon i,
.category-hero-icon i {
    font-size: 1.75rem;
    color: white;
}

.category-hero-body h1 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.category-hero-body p {
    font-size: 0.875rem;
    color: var(--text-2);
    margin: 0;
    line-height: 1.5;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.category-header h2 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.category-header p {
    font-size: 0.875rem;
    color: var(--text-2);
    margin: 0;
    line-height: 1.5;
}

.topic-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.topic-card {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.25s var(--ease);
    animation: fadeUp 0.4s var(--ease) backwards;
    box-shadow: var(--shadow-sm);
}

.topic-card:nth-child(1) {
    animation-delay: 0.03s;
}

.topic-card:nth-child(2) {
    animation-delay: 0.06s;
}

.topic-card:nth-child(3) {
    animation-delay: 0.09s;
}

.topic-card:nth-child(4) {
    animation-delay: 0.12s;
}

.topic-card:nth-child(5) {
    animation-delay: 0.15s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.topic-card:hover {
    background: var(--surface);
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.topic-avatar {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.topic-avatar i {
    font-size: 1.3rem;
    color: white;
}

.topic-body,
.topic-content {
    flex: 1;
    min-width: 0;
}

.topic-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 0.4rem;
    font-size: 0.8rem;
}

.topic-author {
    font-weight: 600;
    color: var(--text);
}

.topic-dot {
    color: var(--text-4);
}

.topic-time {
    color: var(--text-3);
}

.topic-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.4rem;
}

.badge-new {
    background: var(--success);
    color: white;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    letter-spacing: 0.05em;
}

.topic-title {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.4;
    margin-bottom: 0.4rem;
    color: var(--text);
}

.topic-title a {
    color: var(--text);
    transition: color 0.2s var(--ease);
}

.topic-card:hover .topic-title,
.topic-card:hover .topic-title a {
    color: var(--accent);
}

.topic-excerpt {
    font-size: 0.85rem;
    color: var(--text-2);
    line-height: 1.5;
    margin-bottom: 0.6rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.topic-stats {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.78rem;
    color: var(--text-3);
}

.topic-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.topic-stats i {
    font-size: 0.85rem;
}

.topic-comments,
.topic-views {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-3);
}

.topic-comments i,
.topic-views i {
    font-size: 0.85rem;
}

.sidebar {
    position: sticky;
    top: 80px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.widget,
.sidebar-widget {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.widget-title {
    padding: 0.9rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--elevated);
    margin: 0;
}

.widget-title i {
    color: var(--accent);
    font-size: 1rem;
}

.widget-body,
.widget-content {
    padding: 1.25rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
}

.stat-box {
    background: var(--elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.85rem;
    text-align: center;
    transition: all 0.2s var(--ease);
}

.stat-box:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.stat-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 2px;
    color: var(--text);
}

.stat-value.online {
    color: var(--success);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stats-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.stats-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
}

.stats-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.stats-list li:first-child {
    padding-top: 0;
}

.stats-list li span {
    color: var(--text-2);
    font-weight: 500;
}

.stats-list li strong {
    color: var(--text);
    font-weight: 700;
}

.rules-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.rules-list li {
    position: relative;
    padding: 0.45rem 0 0.45rem 1.4rem;
    font-size: 0.82rem;
    color: var(--text-2);
    border-bottom: 1px solid var(--border);
}

.rules-list li:last-child {
    border-bottom: none;
}

.rules-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.sidebar-topic {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 0.85rem 1.25rem;
    color: var(--text-2);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
    line-height: 1.4;
    transition: all 0.2s ease;
}

.sidebar-topic:hover {
    background: var(--elevated);
    color: var(--text);
    padding-left: 1.5rem;
}

.sidebar-topic:last-child {
    border-bottom: none;
}

.sidebar-topic i {
    color: var(--accent);
    font-size: 0.9rem;
    margin-top: 2px;
    flex-shrink: 0;
    opacity: 0.7;
}

.sidebar-topic:hover i {
    opacity: 1;
}

.sidebar-topic span {
    flex: 1;
    display: block;
}

.widget-body.p-0 {
    padding: 0 !important;
}

.topic-detail-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.topic-detail-header {
    padding: 1.75rem;
    border-bottom: 1px solid var(--border);
    background: var(--elevated);
}

.topic-detail-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--text);
}

.topic-detail-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-3);
}

.topic-detail-meta .meta-author {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text);
}

.topic-detail-meta .meta-author i {
    font-size: 1rem;
}

.topic-detail-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.topic-detail-body {
    padding: 1.75rem;
}

.topic-detail-content {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-2);
}

.comments-section {
    margin-top: 2rem;
}

.comments-title {
    font-size: 1.15rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.25rem;
    color: var(--text);
}

.comments-title i {
    color: var(--accent);
}

.comments-count {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--accent-light);
    color: var(--accent);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
}

.comment-card {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    transition: all 0.2s var(--ease);
    box-shadow: var(--shadow-sm);
}

.comment-card:hover {
    border-color: var(--border-hover);
}

.comment-avatar {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.comment-avatar i {
    font-size: 1.1rem;
    color: white;
}

.comment-body {
    flex: 1;
    min-width: 0;
}

.comment-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.comment-author {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

.comment-time {
    font-size: 0.78rem;
    color: var(--text-3);
    display: flex;
    align-items: center;
    gap: 5px;
}

.comment-text {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-2);
    margin-bottom: 0.75rem;
}

.comment-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.comment-like-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.3rem 0.7rem;
    font-size: 0.75rem;
    color: var(--text-3);
    cursor: pointer;
    transition: all 0.2s var(--ease);
    font-family: inherit;
}

.comment-like-btn:hover {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.3);
    color: var(--danger);
}

.comment-form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.comment-form-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
}

.comment-form-title i {
    color: var(--accent);
}

.empty-state {
    text-align: center;
    padding: 3.5rem 2rem;
    background: var(--surface);
    border: 1px dashed var(--border-hover);
    border-radius: var(--radius-lg);
}

.empty-state i {
    font-size: 2.5rem;
    color: var(--text-4);
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text);
}

.empty-state p {
    color: var(--text-3);
    font-size: 0.9rem;
}

.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

.footer .row {
    padding: 2.5rem 0;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.75rem;
}

.footer-brand i {
    font-size: 1.4rem;
    color: var(--accent);
}

.footer-brand span {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--text);
}

.footer-desc {
    font-size: 0.82rem;
    color: var(--text-3);
    line-height: 1.7;
    margin: 0;
}

.footer-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    font-size: 0.82rem;
    color: var(--text-3);
    transition: all 0.2s var(--ease);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.footer-bottom span {
    font-size: 0.78rem;
    color: var(--text-4);
}

.footer-status {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 7px;
    height: 7px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}

.sayfalama {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 2rem;
    padding: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
}

.sayfalama-baslik {
    font-weight: 700;
    color: var(--text);
    margin-right: 8px;
}

.sayfa-aktif {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    padding: 4px 8px;
    background: var(--accent);
    color: white;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.85rem;
}

.sayfa-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    padding: 4px 8px;
    background: var(--elevated);
    color: var(--text-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.2s var(--ease);
}

.sayfa-link:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
}

.sayfa-son {
    font-weight: 700;
    color: var(--accent);
}

.sayfa-nokta {
    color: var(--text-4);
    padding: 0 4px;
    font-weight: 600;
}

.pd-pagination {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
}

.pd-pagination-list {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.pd-pagination-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 6px 10px;
    background: var(--elevated);
    color: var(--text-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s var(--ease);
}

.pd-pagination-link:hover {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
}

.pd-pagination-link.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.pd-pagination li.active .pd-pagination-link {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.yorumlar-container {
    margin-top: 2rem;
}

.yorum-baslik {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.yorum-kart {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s var(--ease);
}

.yorum-kart:hover {
    border-color: var(--border-hover);
}

.yorum-avatar {
    flex-shrink: 0;
}

.pagination-wrap {
    margin-top: 1.5rem;
}

@media (max-width: 991.98px) {
    .sidebar {
        position: static;
        margin-top: 1.5rem;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
    }

    .header-content {
        flex-wrap: wrap;
    }

    .navbar-search {
        order: 3;
        max-width: 100%;
        width: 100%;
        margin-top: 0.5rem;
    }

    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .topic-card {
        padding: 1rem;
    }

    .topic-avatar {
        width: 40px;
        height: 40px;
    }

    .topic-avatar i {
        font-size: 1.1rem;
    }

    .category-hero,
    .category-header {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        gap: 1rem;
    }

    .topic-detail-header {
        padding: 1.25rem;
    }

    .topic-detail-body {
        padding: 1.25rem;
    }

    .topic-detail-title {
        font-size: 1.25rem;
    }

    .comment-card {
        padding: 1rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 575.98px) {
    .topic-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sayfalama {
        gap: 2px;
        padding: 1rem;
    }

    .sayfa-aktif,
    .sayfa-link {
        min-width: 28px;
        padding: 3px 6px;
        font-size: 0.8rem;
    }

    .pd-pagination-link {
        min-width: 30px;
        padding: 4px 8px;
        font-size: 0.8rem;
    }
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}
.topic-detail-content h2 {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.topic-detail-content h2:first-child {
    margin-top: 0;
}

.topic-detail-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.topic-detail-content p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-2);
    margin-bottom: 1rem;
}

.topic-detail-content ul,
.topic-detail-content ol {
    margin: 1rem 0 1.25rem 0;
    padding-left: 1.5rem;
}

.topic-detail-content li {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-2);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 0.25rem;
}

.topic-detail-content ul li::marker {
    color: var(--accent);
    font-weight: 700;
}

.topic-detail-content ol li::marker {
    color: var(--accent);
    font-weight: 700;
}

.topic-detail-content strong {
    color: var(--text);
    font-weight: 700;
}

.topic-detail-content div[style*="background"] {
    background: var(--elevated) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    padding: 1.5rem !important;
    margin: 1.5rem 0 !important;
    box-shadow: var(--shadow-sm);
}

.topic-detail-content div[style*="background"] h3 {
    margin-top: 0 !important;
    color: var(--accent);
}

.topic-detail-content div[style*="background"] p {
    margin-bottom: 0.5rem !important;
}

.topic-detail-content div[style*="background"] p:last-child {
    margin-bottom: 0 !important;
}

.topic-detail-content a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: rgba(37, 99, 235, 0.3);
    text-underline-offset: 3px;
    transition: all 0.2s var(--ease);
}

.topic-detail-content a:hover {
    color: var(--accent-hover);
    text-decoration-color: var(--accent);
}

.breadcrumb + .topic-detail-card .topic-detail-content {
    font-size: 1rem;
}

@media (max-width: 768px) {
    .topic-detail-content h2 {
        font-size: 1.2rem;
        margin-top: 1.5rem;
    }
    
    .topic-detail-content h3 {
        font-size: 1rem;
        margin-top: 1.25rem;
    }
    
    .topic-detail-content p,
    .topic-detail-content li {
        font-size: 0.9rem;
    }
    
    .topic-detail-content div[style*="background"] {
        padding: 1.25rem !important;
    }
}